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2105a92748
Add a few signature bytes after the static call trampoline and verify those bytes match before patching the trampoline. This avoids patching random other JMPs (such as CFI jump-table entries) instead. These bytes decode as: d: 53 push %rbx e: 43 54 rex.XB push %r12 And happen to spell "SCT". Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lkml.kernel.org/r/20211030074758.GT174703@worktop.programming.kicks-ass.net |
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.. | ||
arch/x86 | ||
Documentation | ||
include/objtool | ||
.gitignore | ||
Build | ||
builtin-check.c | ||
builtin-orc.c | ||
check.c | ||
elf.c | ||
Makefile | ||
objtool.c | ||
orc_dump.c | ||
orc_gen.c | ||
special.c | ||
sync-check.sh | ||
weak.c |